Set faces a 4-straight

These situations (or similar) has come up a lot recently and I'm wondering whether I'm handling them right. If you play differently against different types of opponents, please state so, because I'm interested in the general situation not just this specific hand.

Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

MP ($49)
CO ($90.50)
Button ($121.30)
SB ($114.30)
BB ($39)
Hero ($169.15)

Preflop: Hero is UTG with Q[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $0.50.
<font color="#CC3333">Hero raises to $4</font>, MP calls $4, <font color="#666666">1 fold</font>, Button calls $4, <font color="#666666">2 folds</font>.

Flop: ($13.50) Q[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $10</font>, MP folds, Button calls $10.

Turn: ($33.50) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $27</font>, Button calls $27.

River: ($87.50) J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $30</font>, Hero calls $30.

Final Pot: $147.50

Dumle